Ebumnuche bụ akara ngosi nke nchekwa data na-eme ka usoro
Ihe nkesa nchekwa data bụ nchịkọta metadata nke na-akọwa mmekọrịta na nchekwa data. A na-akọkwa atụmatụ ya dịka nhazi ma ọ bụ ụkpụrụ nke nchekwa data nke na-akọwa ụzọ data haziri na tebụl.
A na-akọwakarị skemụm n'iji Structured Query Language (SQL) dịka usoro nke ederede okwu nke enwere ike iji mee ihe na kọntaktị ahụ na nchekwa data ọhụrụ.
Ụzọ dị mfe iji hụ na atụmatụ bụ iji chee ya dịka igbe nke na-ejide tebụl, usoro echekwara, echiche na nchekwa nke nchekwa data ya dum. Onye nwere ike inye ndị mmadụ ohere ịbanye na igbe, ma nwekwa igbe nke a nwere ike gbanwee.
Ụdị Usoro Ntanetị
E nwere ụdị atụmatụ nchekwa data abụọ:
- Ebumnuche nchekwa data nkịtị na- enye usoro iwu maka otu esi echekwa data ọ bụla na nchekwa data.
- Ebumnuche ezi uche ahụ na- enye usoro tebụl na mmekọrịta dị n'ime nchekwa data ahụ. N'ikwu okwu n'ozuzu, ebumnuche ezi uche dị na ya tupu e kee atụmatụ ahụ.
Dịka, ndị na-emepụta nchekwa data na-eji usoro ntanetịime data iji mepụta nkesa nchekwa data dabere na ngwanrọ ga-emekọrịta na nchekwa data.